$ git clone -n https://src.fedoraproject.org/rpms/golang-gopkg-sourcemap.git /var/lib/mock/f31-build-112989-34327/root/chroot_tmpdir/scmroot/golang-gopkg-sourcemap
Cloning into '/var/lib/mock/f31-build-112989-34327/root/chroot_tmpdir/scmroot/golang-gopkg-sourcemap'...
$ git reset --hard 5a17d401328f9ea12045605348555fd414d5d8f9
HEAD is now at 5a17d40 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild